304211940 has 48 divisors (see below), whose sum is σ = 901901952. Its totient is φ = 76350976.

The previous prime is 304211939. The next prime is 304211977. The reversal of 304211940 is 49112403.

It is a self number, because there is not a number n which added to its sum of digits gives 304211940.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148104 + ... + 150143.

It is an arithmetic number, because the mean of its divisors is an integer number (18789624).

Almost surely, 2^304211940 is an apocalyptic number.

304211940 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

304211940 is an abundant number, since it is smaller than the sum of its proper divisors (597690012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

304211940 is a wasteful number, since it uses less digits than its factorization.

304211940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298276 (or 298274 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 304211940 is about 17441.6725115454. The cubic root of 304211940 is about 672.5513031899.

The spelling of 304211940 in words is "three hundred four million, two hundred eleven thousand, nine hundred forty".